
div{
	width: 400px;
	height: 400px;
	border: 2px solid #000000;
}

.box{
	width: 296px;
	height: 296px;
	border: 2px solid #ffffff;
	background: #ff00ff;
	float: left;
}

.box_g,.box_y{
	border: 0px;
	width: 100px;
	height: 100px;
	float: right;
}

.box_g{
	background: #77cc11;
}

.box_y{
	background: #ffff00;
}
